diff options
Diffstat (limited to 'drivers/iio/proximity/sx_common.c')
| -rw-r--r-- | drivers/iio/proximity/sx_common.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/iio/proximity/sx_common.c b/drivers/iio/proximity/sx_common.c index eba9256730ec..fe07d1444ac3 100644 --- a/drivers/iio/proximity/sx_common.c +++ b/drivers/iio/proximity/sx_common.c @@ -424,6 +424,27 @@ static const struct iio_buffer_setup_ops sx_common_buffer_setup_ops = { .postdisable = sx_common_buffer_postdisable, }; +void sx_common_get_raw_register_config(struct device *dev, + struct sx_common_reg_default *reg_def) +{ +#ifdef CONFIG_ACPI + struct acpi_device *adev = ACPI_COMPANION(dev); + u32 raw = 0, ret; + char prop[80]; + + if (!reg_def->property || !adev) + return; + + snprintf(prop, ARRAY_SIZE(prop), "%s,reg_%s", acpi_device_hid(adev), reg_def->property); + ret = device_property_read_u32(dev, prop, &raw); + if (ret) + return; + + reg_def->def = raw; +#endif +} +EXPORT_SYMBOL_NS_GPL(sx_common_get_raw_register_config, SEMTECH_PROX); + #define SX_COMMON_SOFT_RESET 0xde static int sx_common_init_device(struct device *dev, struct iio_dev *indio_dev) |